How are you taking the snap shot? How do you receive that snapshot into
Java? By loading it as an image, or are you using the built-in robot
facilities to do the snapshot?
If you are using robot, then the image will already be a BufferedImage
so you don't need to convert it. If you are loading a snapshot stored
as a file, then you can load the image using ImageI/O instead of
Toolkit/Component.getImage() and get a BufferedImage that way...
...jim
[EMAIL PROTECTED] wrote:
First, i am extracting images from the video stream by taking a snap shot of each images
from the video, and then I extracted the pixels data from those images using
pixelGrabbers. This return a byte[] array of pixels information of the image. then i
create BufferedImage using the method i posted above, but the way that i have written can
cause out of heap memory error because i am declaring "new" everytime i got a
new dataBuffer. the dimension of the byte[] dataBuffer is the same; the only change is
the pixel info. Here is some part of my program:
public class ExtractImage{
//start video stream
//then take a snap shot of video at every 5 seconds.
//then extract the pixel info from the snap shot image using pixelsGrabber, and
//then put that data in the byte[] dataBuffer array.
//After that produce BufferedImage or RenderedImage by calling this
//produceRenderedImage method.
public BufferedImage produceRenderedImage(byte[] dataBuffer, int width, int
height)
{
DataBuffer dBuffer = new DataBufferByte(dataBuffer, width * height);
WritableRaster wr =
Raster.createInterleavedRaster(dBuffer,width,height,width,1,new int[]{0},null);
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
ColorModel cm = new ComponentColorModel(cs,false, false, Transparency.OPAQUE,
DataBuffer.TYPE_BYTE);
BufferedImage bi = new BufferedImage(cm, wr, false, null);
return bi;
}
}
thanks for all your help. i really appreciated it.
Francis
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